Over the last couple of weeks we have been testing the Rotrex 92 trim on our stock engine shop car. So far our findings have been very promising. The biggest thing we have noticed is a large increase in efficiency, the blower makes the same if not more power running lower boost pressures with a marked difference in flow to redline. As of right now nothing is set in stone and things may change with additional long term testing.

The power output and the heat it generates is what makes an unsafe environment for the engine not the amount of boost you are running.This logic of measuring boost between blowers does not make sense and is not accurate.

I don't care what company you are but if you are running 9.5 boost on a stock motor, meth or no meth. That shit is not holding up and for sure there are blown motors all over the place that we don't know about. (if running 9.5 psi, I think you would have to run VP110 to keep that thing safe.. if that.)

I don't care what company you are but if you are running 9.5 boost on a stock motor, meth or no meth. That shit is not holding up and for sure there are blown motors all over the place that we don't know about. (if running 9.5 psi, I think you would have to run VP110 to keep that thing safe.. if that.)

Thank you for your input These kits are not for sale and will under go long term testing before we determine what boost they are shipped with.

I don't care what company you are but if you are running 9.5 boost on a stock motor, meth or no meth. That shit is not holding up and for sure there are blown motors all over the place that we don't know about. (if running 9.5 psi, I think you would have to run VP110 to keep that thing safe.. if that.)

+1, josh cant agree with you more

Quote:

Originally Posted by Andrew@ActiveAutowerke

Thank you for your input These kits are not for sale and will under go long term testing before we determine what boost they are shipped with.

I will state again comparing boost does not make sense.

I like this - 2 years after you release your supercharger for this platform your now testing better blowers to improve your kit. Wonder how all those poor hks AA kit owners feel after seeing this and realizing that their original 15k purchase came with a shit blower

Quote:

Originally Posted by Chriskm3

What can ess push at 9.5 psi?

ESS (as well as probably every other company) doesn't push 9.5psi because it is too much boost for pump gas to run safely on this motor.

The comments some of you make without knowing what actually goes into building a car like this is just incredible. The boost level comments are irrelevant. Boost is not necessarily the factor in the reliability equation. The heat caused by the extra power is the most important aspect to take in to consideration.

Basing opinions on a simple number is over simplifying the complexity that goes in to creating a supercharger kit and the tuning that goes with it. Boost is not boost. There are so many other variables that are more important here that are completely ignored. We are trying to help the community and educate at the same time. Our intention is not to give our previous customers the short end of the stick, but we also like progress.

We are trying our best to provide a quality product to all of you and meeting your power goals. We will not release anything we deem completely unsafe or irresponsible. Our goal is not to build the biggest and the baddest, but to make something that can be enjoyed everyday without headache.

Don't quote me 100% on those conversions, both manufacturers use some odd-ball flow rates instead of something standard like kg/hr, CFM, or lbs/hr.

The rotrex 92 offers a larger housing, think S-cover in the turbo world. The wheel is not setup any differently but the cover breathes better.

Now the comparison with the Vortech. There are alot of other factors not taken in to account here. These are peak flow numbers but do nothing to reveal how the blower acts in anything other than 100% speed. The wheel geometry can change the dynamics through the blower rev range quite a bit. It is noticeable that the Rotrex/HKS units offer more flow at lower revs than the Vortech, which tends to be a bit peaky. Blowers can be under/over spun etc.

Peak CFM does not show a compressor map. On these motors, we know the Vortech outflows the Rotrex, though the Rotrex appears to be able to flow enough for any stock compression motor running on pump gas.